According to SWPC, minor (G1) storm conditions may persist into the first synoptic period of April 21 with an overnight sub-storm before diminishing to unsettled to active levels on April 22. A return to quiet to unsettled levels are expected on April 22

"The 10 Mev greater than 10 pfu proton event (S1-minor) which began on April 18 at 15:25 UTC reached a maximum of 58 pfu at 01:05 UTC on April 19 before beginning to decline. The decline was interrupted when an interplanetary (IP) shock passage was detected at ACE at 10:57 UTC on April 20. 10 MeV flux briefly rose from 15 pfu to near 30 pfu before plummeting below the 10 pfu threshold at 11:55 UTC on April 20, signaling the end of the proton event.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels during the rest of the day. The greater than 10 MeV proton flux at geosynchronous orbit is expected to be elevated, but below the 10 pfu threshold. It should gradually return to nominal levels over the next three days with a slight chance for another event on April 21 and 22." (SWPC)

Image credit: NOAA / SWPC

Solar activity has been at low levels during past 24 hours. Only three low level C-class solar flares have been observed by 11:00 UTC on April 21.

There are currently 9 numbered sunspot regions on the Earth side of the Sun. Most regions were stable or decaying during last 34 hours. The three largest regions, 2034 (N04W66, Eko/beta-gamma), 2035 (S16W43, Eai/beta-gamma), and 2036 (S17E68, Dac/beta-gamma) decreased in areal extent from yesterday but retained their beta-gamma magnetic complexity. This large complex regions will exit around the west limb and start their farside rotation over the next couple of days.

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"Here's to the crazy ones, the misfits, the rebels, the troublemakers, the round pegs in the square holes… the ones who see things differently -- they're not fond of rules… You can quote them, disagree with them, glorify or vilify them, but the only thing you can't do is ignore them because they change things… they push the human race forward, and while some may see them as the crazy ones, we see genius, because the ones who are crazy enough to think that they can change the world, are the ones who do."